Journal ArticleDOI
Strengthening and toughening of magnesium alloy by {1 0 −1 2} extension twins
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In this paper, the mechanisms of strengthening and toughening of hot-rolled AZ31 magnesium alloy by extension twins during strain path changed recompression are studied in the current paper.About:
This article is published in Scripta Materialia.The article was published on 2012-01-01. It has received 208 citations till now.read more
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Hall-Petch relationship in Mg alloys: A review
TL;DR: In this paper, a review and comments of the past work on the factors influencing k in Mg alloys are presented, and the reason for texture effect on k is analyzed based on the mechanism of Hall-Petch relationship.
Journal ArticleDOI
A crystal plasticity model for hexagonal close packed (HCP) crystals including twinning and de-twinning mechanisms
TL;DR: In this paper, a physics-based twinning and de-twinning (TDT) model is proposed for polycrystalline plastic deformation, which is characterized by four deformation mechanisms corresponding to twin nucleation, twin growth, twin shrinkage, and retwinning.
Journal ArticleDOI
Unveiling the formation of basal texture variations based on twinning and dynamic recrystallization in AZ31 magnesium alloy during extrusion
M.G. Jiang,M.G. Jiang,Cheng-Yan Xu,H. Yan,G. H. Fan,Taiki Nakata,C.S. Lao,C.S. Lao,Rongshi Chen,Shigeharu Kamado,En-Hou Han,B.H. Lu +11 more
TL;DR: In this article, the mechanisms for the formation of basal texture variations were systematically investigated based on the twinning and dynamic recrystallization (DRX) during extrusion using electron back-scatter diffraction (EBSD) characterization.
Journal ArticleDOI
Twin-twin interactions in magnesium
TL;DR: In this article, the authors studied twin-twin interactions by combining experimental observations and theoretical analysis, and classified twin-two interactions into Type I and Type II for two twin variants sharing the same zone axis and two twins with different zone axes, respectively.
Journal ArticleDOI
Improving tensile and compressive properties of magnesium alloy plates by pre-cold rolling
TL;DR: In this paper, the tensile and compressive properties of AZ31 plates were dramatically enhanced by pre-rolling with small thickness reduction along the transverse direction, attributed to the subdivision of grains by introducing extension twin boundaries.
References
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Journal ArticleDOI
Revealing the Maximum Strength in Nanotwinned Copper
TL;DR: The maximum strength of nanotwinned copper samples with different twin thicknesses is investigated, finding that the strength increases with decreasing twin thickness, reaching a maximum at 15 nanometers, followed by a softening at smaller values that is accompanied by enhanced strain hardening and tensile ductility.
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Influence of grain size on the compressive deformation of wrought Mg-3Al-1Zn
TL;DR: The influence of the grain size on the flow stress of extruded Mg-3Al-1Zn tested in compression is examined in this paper, where samples with grain sizes varying between 3 and 23 μm were prepared by altering the extrusion conditions.
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Twinning and the ductility of magnesium alloys Part I: “Tension” twins
TL;DR: In this article, a series of tensile test results are reported for the common wrought alloy AZ31 and a simple constitutive model is employed to argue that View the MathML source twinning (which gives extension along the c-axis) can increase the uniform elongation in tensile tests.
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Twinning and the ductility of magnesium alloys: Part II. “Contraction” twins
TL;DR: In this paper, a series of tensile and compression tests results are reported for common wrought alloys: AZ31, ZK60 and ZM20, and these data are combined with EBSD analysis and simple flow stress models to argue the following: (i) contraction double twinning (which enables contraction along the c axis) can decrease the uniform elongation, and (ii) compression double twinening can also account for shear failure at low strains.
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Hardening evolution of AZ31B Mg sheet
TL;DR: In this article, the monotonic and cyclic mechanical behavior of O-temper AZ31B Mg sheet was measured in large-strain tension/compression and simple shear.